1/* 2 * Copyright (c) 2023-2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16class X { 17 public foo: number 18 19 constructor() { 20 this.foo = 0 21 } 22} 23 24class Y { 25 public foo: number 26 27 constructor() { 28 this.foo = 0 29 } 30} 31 32let x = new X() 33let y = new Y() 34 35console.log("Assign X to Y") 36y = x 37 38console.log("Assign Y to X") 39x = y